Vacuum Bleeding Suspension Units

[@ericcindycrowder7482]

I use this kind of machine on a daily basis. Instead of letting the oil fill pressure push the separator piston all the way out, I prefer to use a setting tool or blocker to prevent the separator piston from moving all the way out. This way, the pressure from the oil fill pushes the separator piston to the setting tool position and it stays there. No need to push the separator piston into position after the fill.

[@MaulTechATV]

Is it me or did I see some huge air bubbles still in that shock before and after filling?

[@LainerSuspensionRacing]

+MaulTechATV me too!!!

[@crazybob1954mo]

@MaulTechATV Yes, In doing a proper bleed he should have held the shock up right and applied vacuum again pulling some oil and the remaining air bubbles out, Then applied oil under pressure to fill the shock again. THEN set the reservoir piston depth.

[@Anderle52134]

Thumb down is for the remaining air bubbles

[@SAMFICOM]

What is the cost of Ohlins vacuum bleeder?

[@eyalcr500]

not only Mr. "kiwi" has an accent that many words are hard to understand - there is also air in that shock! i'm in shock! ;-)

[@bscbikesuspensioncenter5626]

Pumps like this are for technicians who want save time but isn't a perfect bleeding procedure . I never works on small shocks like MTB suspensions .

[@SaettaJ]

I fully agree with you, I built myself an automatic vacuum machine like this one, in mountain bike shocks at the end of the cycle there is always a bit of air left inside, I have tried many different combinations of cycles but a final test by moving the shock absorber and tapping the body with a rubber hammer is necessary to remove all the air inside it